HUP0000715A2 - A radio communication system selectively using multicast with variable offset tome - Google Patents

A radio communication system selectively using multicast with variable offset tome

Info

Publication number
HUP0000715A2
HUP0000715A2 HU0000715A HUP0000715A HUP0000715A2 HU P0000715 A2 HUP0000715 A2 HU P0000715A2 HU 0000715 A HU0000715 A HU 0000715A HU P0000715 A HUP0000715 A HU P0000715A HU P0000715 A2 HUP0000715 A2 HU P0000715A2
Authority
HU
Hungary
Prior art keywords
channels
information
transmission multiplexing
mobile unit
antennas
Prior art date
Application number
HU0000715A
Other languages
Hungarian (hu)
Inventor
Bo Anders Grandström
Carl Erik Joakim Langlet
Original Assignee
Telefonaktiebolaget Lm Ericsson
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefonaktiebolaget Lm Ericsson filed Critical Telefonaktiebolaget Lm Ericsson
Publication of HUP0000715A2 publication Critical patent/HUP0000715A2/en
Publication of HUP0000715A3 publication Critical patent/HUP0000715A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit antennas

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Small-Scale Networks (AREA)

Abstract

A találmány tárgya digitális távközlési rendszer őlyanrádiófrekvenciás csatőrnákőn keresztüli távközlési lefedésbiztősítására, amely csatőrnák fel vannak ősztva nagyőbb számúidőrésre, amelyek alatt legalább egy darab mőbil egységgel infőrmációvan közölve. A találmány szerinti rendszernek része egy bázisállőmás,amely magában főglal nagyőbb számú antennát az infőrmáció mőbilegységhez történő átvitelére több adástöbbszöröző, és nemadástöbbszöröző csatőrna bármelyikén. A nem adástöbbszöröző csatőrnákőlyan időrések, amelyek alatt az infőrmáció az antennáknak csakegyikéről van adva, míg az adástöbbszöröző csatőrnák őlyan másikidőrések, amelyek alatt űgyanazőn infőrmáció az antennáknak több, mintegyikéről van adva. A rendszernek része még egy vezérlő, amelyadástöbbszöröző, és nem adástöbbszöröző csatőrnákat allőkál azinfőrmáció mőbil egységhez történő átvitelében való használatra azőnrádiófrekvenciás csatőrnák legalább egyike terjedési tűlajdőnságánakegy mértéke alapján, amelyek a mőbil egységet a bázisállőmássalösszekapcsőlják. ŕThe subject of the invention is a digital telecommunications system for ensuring telecommunications coverage through radio frequency channels, which channels are divided into larger time slots, during which information is communicated to at least one mobile unit. Part of the system according to the invention is a base station, which mainly includes a larger number of antennas for the transmission of information to the mobile unit on any of several transmission multiplexing and non-transmission multiplexing channels. Non-transmission multiplexing channels are time slots during which information is transmitted from only one of the antennas, while transmission multiplexing channels are other time slots during which information is transmitted from several of the antennas at the same time. The system also includes a controller that selects transmission multiplexing and non-transmission multiplexing channels for use in transmitting information to the mobile unit based on a measure of the propagation speed of at least one of the radio frequency channels connecting the mobile unit to the base station. ŕ

HU0000715A 1997-03-04 1998-03-03 A radio communication system selectively using multicast with variable offset tome HUP0000715A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/811,010 US5930248A (en) 1997-03-04 1997-03-04 Radio communication system selectively using multicast with variable offset time
PCT/SE1998/000381 WO1998039860A1 (en) 1997-03-04 1998-03-03 A radio communication system selectively using multicast with variable offset time

Publications (2)

Publication Number Publication Date
HUP0000715A2 true HUP0000715A2 (en) 2000-06-28
HUP0000715A3 HUP0000715A3 (en) 2002-02-28

Family

ID=25205284

Family Applications (1)

Application Number Title Priority Date Filing Date
HU0000715A HUP0000715A3 (en) 1997-03-04 1998-03-03 A radio communication system selectively using multicast with variable offset tome

Country Status (10)

Country Link
US (1) US5930248A (en)
EP (1) EP0965187B1 (en)
CN (1) CN1166085C (en)
AU (1) AU731902B2 (en)
BR (1) BR9807280A (en)
CA (1) CA2283395A1 (en)
DE (1) DE69836727D1 (en)
HU (1) HUP0000715A3 (en)
TW (1) TW493326B (en)
WO (1) WO1998039860A1 (en)

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Also Published As

Publication number Publication date
TW493326B (en) 2002-07-01
HUP0000715A3 (en) 2002-02-28
AU6643798A (en) 1998-09-22
CN1255258A (en) 2000-05-31
EP0965187A1 (en) 1999-12-22
CN1166085C (en) 2004-09-08
DE69836727D1 (en) 2007-02-08
US5930248A (en) 1999-07-27
WO1998039860A1 (en) 1998-09-11
CA2283395A1 (en) 1998-09-11
EP0965187B1 (en) 2006-12-27
AU731902B2 (en) 2001-04-05
BR9807280A (en) 2000-05-23

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